is a 62 km river of Northern Italy, which runs through Pontremoli
, Villafranca in Lunigiana
in the province of Massa-Carrara
); Santo Stefano di Magra
, Vezzano Ligure
in the province of La Spezia
). In Roman
times it was known as the Macra
and marked the western boundary of the territory of Liguria.
The river’s drainage basin occupies around 1,686 km². Its most important tributary is the Vara which joins the Magra from the right within the commune of Santo Stefano di Magra.